Hydraulic elevator



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ATTURNEYS.

Patented Oct. 9x 1883. I

, HYDRAULIC: BLEVATOB..

J. A. LESOURD 8u J. LOTAN.

VE i t (No Modell) 2 Sheets-Sheet 2.

(No Model.)

J. A. LBSOURD 8v J. LOTAN. HYDRAUMG ELBVATOR. No. 286,451. Patented Got. 9, 1883.

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JOHN A.. LESOUBD AND JAMES LOTAN, OF PORTLAND, OREGON.

HYDRAULIC ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 286,451, datcd'October 9, 1883.

Application lllcd February 24, 1883. (No model.)

Vall whom it may concern.'- i

Be it known that we, JoHNgA. Lnsonnmof irtland, county of Multnomah, and State of regen, and JnMEsLoTAN, of Portland, county Multnomah, and State of Oregon, have inf.- Y n elevation of a hydraulic elevator embodying inted certain new and useful Improvements Hydraulic Elevators, of which the followgis a full, clear, and exact description.l This invention relates totelescopic elevars in whicha fluid under pressure, or which supplied from a higher head or level than at to which it is necessary to raise the cage platform of the elevator, is made to act upon series of rains or tubes arranged to work one ithin the other. `Our invention, however, tiers from other telescopic hydraulic elevars in its mode efaetion, valve-gear, and mechlisrn, whereby we produce what we term a nultiple hydraulic elevator,7 in which each lescoping section is controlled by independt valves, and may be raised or lowered in- ;pendently of the other sections, thus makg each section a -complete elevating device thin itself, and so that the working-fluid ry be introduced to-either telescopic section operate the cage or platform of the elevator given distance, or two or more or all ot the Leseopic sections may be simultaneously, Opf; ated, as desired. e l .l The invention also includes a series of secmallyconstructed and flexibly connected or ntedA pipes for transmitting the Working- Aid from a general supply-pipe to the differ t elevator-sections, substantially as, herein- :cr described. Furthermore, the invention niprises a special automatic stop mechanism f closing the valves of the telescoping secuis whenever said sections reach the limit of cir stroke. The object of our invention is to provide an :vater the operations of which are at all ues under perfect control, and which is exipt from liability to accident to which wheels sing and lowering cables, and other convances apt to break or give way, are exsed. The multiple action obtained by a iarate set of valves for each rani or elevatorition, making each ram an independently- :vating device, but admitting of all the rains erating in concert when required, will. be.

Ind a great convenience and advantage. i I

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar vletters of reference indicate corresponding parts in all the figures.

Figure l represents abroken or interrupted our invention, and as arranged to operate within or through the several iloors of a building, (shown in section,) the upper part of the elevator being represented at the right hand oi' said figure. Fig. 2 is a side elevation, in part, upon a larger scale, in illustration of the valves, valve mechanism, and automatic stop devices applied to each telescoping section; and Fig. 3, a vertical section in a parallel plane with Fig. 2 of like devices. Fig. 4 is a sectional view, also upon a largerscale, of one of the lexible joints of the connecting supplypipe sections between the several elevatorsections.

The elevator, as represented in the drawings, has three working-rains; but of course there may be two, four, or more.

A indicates the cellar-floor of a building; B, a pit below said lloor, and A', A`, A, and A, first, second, third, and `l'ourth lloors, respecti ively, of the bui lding.

C C are the fixed uprights or guides of the elevator-shaft, arranged to pass through the @several iioors below the top one, and serving yto direct the cage or platform and workingy rams of the elevator.

The elevator is mainly composed of a series of telescoping pipes, DD l)lz D, of such areas or diameters as the work to be done may require, or according to the available pressure in the hydraulic main from or by which the elevator is worked, the lower one of these pipes being the largest and the others being of decreasing diameter in regular order. Said pipes have their lower ends closed, so that they form lrams and ram-cylinders, the lower one, D, of which is stationary, and the uppermost one, instead of being a pipe, might be a solid ram. Each of said pipes or rains, cxcepting the top one, which carries the cage 'or platform E, is provided at its upper end with astufling-box and gland, I), to forni a water-tight joint 'for the pipe or ram working up or down within it. The several rains andra-1ncylinders constitute the telescoping secti ons of IOO ' inlet-pipe G the elevator, and, with the exception oi' the top one, each is provided with suitable inlets and outlets lor the working lluid or water, and with valves and valve mechanism for controlling the ingress and egress ol' the -lluid.

Gl represents the general inlet or supply pipe for the water used to work and l-I the general outlet or escape pipe. The serves to supply the water direct to the lower rani-cylii ider, l), and each succeed ing ram is indirectly supplied l'rom said pipe. Thus each ram, excepting the upper one, has ilanged projections d on opposite sides of its stl'rl'li n g-box, t o whicl l are secured, respectively,

- an inlet-valve box, e, and an outlet-valve box l', containing inlet-valves I and outlet-valves J. Secured to the outer flanges of these lateral proj ections from the stuliingboxes of the rams are further lateral extensions or couplings, g

the elevator,

71 the ones, g, of which are supply-water eoupflings, and the others, Il, exl'iaustwater couplings. rlhese latter couplings, It, are littcd with smiling-boxes, and serve to carry a series of telescoping pipes, K, for the exhaust-water; also, to these couplings and the couplings g oi' the workingrams are secured the cross heads or slides '1'.,2which work up and down the uprights C @,Ito guide said rams. The supplywater couplings g have flexibly jointed to them a series `oi" connecting supply-pipes, each ol' which is built up of a series of sections, lo, ilexibly jointed to each other, as at L, and arranged to open and close in a folding and un- .i'olding manner relatively to each other, to conl'orm lo the motion of the rams. Thei'lexiblejoint L, by which the sections 1.1 are united with each other, is shown in Fig. 4, the same consisting oi'a shell, I, having a lside opening, on, and an outer shell, a, fitted to turn freely ou or around the shell Z, and secured at its en? fasher, o, whcreby` posed end by a nut and v the joint may be tightened.

.The inlet and outlet valves I .I oi' the several el evator-sections are connected, respectivelya combination oi' reverse cranks, a a2 a with connections b b',

that is, the two valves of cach ram-sect.ion-.-by a", and said cranks are operated to control the movement of the valves by a lever, M, for each ram or elevator section, said lever turning on a stud on the side of the stuffing-box of the ram. The levers M are slotted at o to allow of the passage through them of rods N, having stops s s to automatically control. the closing of the valves in the ascent or descent of the elevator -sections Each ram-section has one of these rods Nconnected at its upper end to it. The outer ends of the levers M, which span the width of the cage, so as to be out of the way, have attached to them small hand-ropes d', each lever having its own rope. These ropes are arranged to run through the side of the cage or platform, and to and over or around sheaves c c, at the top and bottom ol' the elevator frame or shaft.

,lo start the elevator rom 'its l \vcrn1ost position, lhe hydraulic main having been preescasa viously opened, the lower valve-lever M depressed by its manipulatingrope cl to op the inletvalve I of the lower ram-sectie This will canse the clevatorto ascend to tl next story above or other given position, a as the ram thus raised reaches, or nearlyf its topmost position, the bottom stop, s, of t rod N of the elevator-ram section,l coming contact with said lever, raises it and closes t inlet-valve it controls, thus automatically s resting the motion of the ram. rlhe action ,the valves I and J, as described, will be rea ily understood by reference to Figs. 2 and both valves being closed when the lever M in a'horizontal position, and the two vali being set with reverse laps, so that only t 4inlet-valve I is opened when the lever M is C pressed from its horizontal position,l and closed with out opening the outlet-valveJ wh returning said lever -to its horizontal positie and the outlet-valve J is opened without ope ing the inlet-valve on lifting the lever Mabo its horizontal position. To continue the n ward movement ofthe elevator, the next val\ lever M is similarly manipulated by -its ro d to elevate the next ram', when' a like acti takes place, and so on for the several ran the bottom stops, s, of the ro`ds d', pertaini to the rising rams, always closing at the prop time the inlet-valves I belonging to -said ranv If itl be required to similarly lower the vator by moving each ram in succession, it only necessary to`reverse the manipulation, succession, of the several ropes d, so as open the outlet-valves respectively controll by them, while closing or keeping closed t inlet-valves, when the water, passing off l the telescopic exhaust-pipes K and outlet l will cause the rams to be successively lower as` required, the upper stops, s', of the rods automatically operating on the valve-levers to shift the valves and stop the downward 1n ti on 'of the rams at their appointed time, as .the case of the upward action of the elevat( If it is desired, however, to at once move t elevator to its extreme upward position, i stead of by stages, as effected by the succ( sive manipulation of the valves controlling t' several rams, all the inlet-valves can be open f at once, causing the several rams to move i together, and the operationmay be revers to come down.

Having thus fully described our inventio we claim as new and desire to secure by L( ters Patent- 1. In a telescoping hydraulic elevator, t combination of a series of rams or ram-cyli ders arranged to work one within the oth( independent inlet and outlet valves separate applied to each ram or elevator-section, ai

upply and exhaust pipes for the operatin i uid capable of moving up and down with t several. ram-sections and connecting them, l sentially as described.

l 2. The combination, with the several rai sections ofthe elevator, ol' a series oi' connel ing iluit'l-supply pipes constructed in seetior flexibly jointed to each other and to the ranr' sections, substantially as specified.

3. The connecting iinid supply pipes between the ramsections of a hydraulic elevator, constructed of a series of pipe-sections, k, ilexibly j ointedwith each other by turning joints or joint-pieces L, and arranged to open and close in afolding and unfolding manner relatively to each other, essentially as described.

4. In a telescoping hydraulic elevator, the combination, `with the several rams or elevating-seeti ons ofthe elevator, and Withindep end'- ent valves and valve mechanism arranged 'to separately control said sections, of a series of stops connected with the ram-sections, and an ranged to automatically control said valves at or near the extremity ofthe movement of the rams in either direction, substantially as specified.

JOHN A. LESOURD. JAMES LOTAN.

lVitliesses:

Hoeren B. NrcHoLAs, FRED. lf. HOLMAN.

the independentKram-sections, D D D2A 

